CVE-2026-39411

LobeHub has an unauthenticated authentication bypass on `webapi` routes via forgeable `X-lobe-chat-auth` header

State
Published
Severity
5.0 Medium
Published
Apr 8, 2026
Updated
Apr 8, 2026
Reserved
Apr 7, 2026

Read the record on cve.org

Description

LobeHub is a work-and-lifestyle space to find, build, and collaborate with agent teammates that grow with you. Prior to 2.1.48, the webapi authentication layer trusts a client-controlled X-lobe-chat-auth header that is only XOR-obfuscated, not signed or otherwise authenticated. Because the XOR key is hardcoded in the repository, an attacker can forge arbitrary auth payloads and bypass authentication on protected webapi routes. Affected routes include /webapi/chat/[provider], /webapi/models/[provider], /webapi/models/[provider]/pull, and /webapi/create-image/comfyui. This vulnerability is fixed in 2.1.48.

Scores

CVSSScoreVectorSource
3.15.0 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:LGitHub_M

Weaknesses

  • CWE-287 Improper Authentication
  • CWE-290 Authentication Bypass by Spoofing
  • CWE-345 Insufficient Verification of Data Authenticity

Affected Products

ProductVersions
lobehublobehub
  • < 2.1.48Affected

References

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